Had my first experience with the Vault of Glass raid and it is smurfing amazing. It is insanely hard but for some reason you can't help but keep coming back for more punishment.

I got a group going, played it for 3 hours and left when we beat the first boss. Made and ate dinner, watched chuck with Tara and then jumped back on the game, and the group were still on the first phase of the last fight. I've had to stop now because I need to sleep, but they were still going at it when I left. All credit to Bungie for not pulling any punches with their end game difficulty.